Auxiliary spring conveying device and spring production line

Abstract

The utility model discloses an auxiliary spring conveying device and a spring production line, and belongs to the technical field of spring production equipment, the auxiliary spring conveying device comprises a bag separating mechanism and a conveying part, the bag separating mechanism is configured to separate bagged springs to obtain a plurality of bagged springs; the conveying component comprises a supporting plate, a rotary driving assembly and two conveying assemblies arranged in a left-right spaced mode, the two conveying assemblies are both connected to the upper end of the supporting plate, a conveying channel is formed between the two conveying assemblies, an inlet of the conveying channel is opposite to an outlet of the bag separating mechanism, and the rotary driving assembly is used for driving the two conveying assemblies to operate synchronously. The two ends, in the length direction, of the bagged spring can abut against the left end and the right end of the conveying channel correspondingly, the conveying channel is used for conveying the bagged spring from back to front, conveying of the bagged spring is more stable, and the conveying precision of the bagged spring is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring production equipment technical field, especially spring auxiliary conveying device and spring production line. BACKGROUND

[0002] In the related art, the spring production equipment packs the spring, and the packed spring is divided into multiple bags, and the multiple bags are connected together, but the conveying of the multiple bags is prone to accumulation, which reduces the conveying accuracy of the packed spring. UTILITY MODEL CONTENTS

[0003] The utility model discloses at least one of the technical problems in the prior art is solved, and therefore, the utility model provides a spring auxiliary conveying device, which is beneficial to the stable conveying of the packed spring and improves the conveying accuracy of the packed spring.

[0004] The utility model discloses further provide a spring production line.

[0005] The spring auxiliary conveying device according to the first aspect of the utility model is applied to the production of the packed spring, and the spring auxiliary conveying device comprises a bagging mechanism configured to divide the packed spring into multiple bags, and a conveying component comprising a supporting plate, a rotary driving assembly and two conveying assemblies arranged at intervals left and right, both of the two conveying assemblies are connected to the upper end of the supporting plate, a conveying channel is constructed between the two conveying assemblies, the inlet of the conveying channel is opposite to the outlet of the bagging mechanism, the rotary driving assembly is used to drive the two conveying assemblies to operate synchronously, the two ends of the packed spring along the length direction can abut against the left end and the right end of the conveying channel respectively, and the conveying channel is used to convey the packed spring from back to front.

[0006] The spring auxiliary conveying device according to the utility model has the following beneficial effects: the bagging mechanism is used to divide the packed spring into multiple bags, and the multiple bags are connected together, the spring auxiliary conveying device is additionally provided with the conveying component, both of the two conveying assemblies are connected to the upper end of the supporting plate, the upper end of the supporting plate can be used to support the formed packed spring, a conveying channel is constructed between the two conveying assemblies, the inlet of the conveying channel is connected to the outlet of the bagging mechanism, that is, the bagging mechanism can convey the multiple divided packed bags to the conveying channel in an array, the two ends of the packed spring along the length direction can be connected to the left end and the right end of the conveying channel respectively, the rotary driving assembly is used to drive the two conveying assemblies to operate synchronously, under the driving action of the rotary driving assembly, the multiple packed bags are conveyed in an array from back to front, which is beneficial to the stable and reliable conveying of the packed spring, avoids the problems of accumulation and conveying deviation of the packed spring, and is beneficial to improving the conveying accuracy of the packed spring.

[0007] According to some embodiments of the utility model, the conveying assembly comprises a belt and a plurality of pulleys arranged front to back, the pulleys are rotationally connected to the supporting plate, the belt is wound between the plurality of pulleys, and a conveying channel is formed between the two belts.

[0008] According to some embodiments of the utility model, the bagging mechanism comprises a linear driving assembly and a welding frame, the linear driving assembly is connected to the welding frame to drive the welding frame to move back and forth, and a rotary driving assembly is connected to the welding frame to convert the back and forth movement of the welding frame into the rotation of the pulleys.

[0009] According to some embodiments of the utility model, the conveying assembly further comprises a first bevel gear connected to one of the pulleys, and the rotary driving assembly comprises a second bevel gear rotating around a left-right axis, the second bevel gear meshes with the first bevel gear.

[0010] According to some embodiments of the utility model, the conveying assembly further comprises a rotating shaft, two second bevel gears are coaxially arranged on the rotating shaft, and the second bevel gears correspond one to one to the first bevel gears.

[0011] According to some embodiments of the utility model, the rotary driving assembly further comprises a one-way bearing, a connecting rod and a swing arm, the two ends of the connecting rod are movably connected to the welding frame and the swing arm respectively, the end of the swing arm away from the connecting rod is connected to the one-way bearing, and the one-way bearing is connected to the rotating shaft to drive the rotating shaft to rotate in the positive direction.

[0012] According to some embodiments of the utility model, one end of the connecting rod is rotationally connected to the welding frame, the other end of the connecting rod is connected to a connecting shaft, one end of the swing arm adjacent to the connecting rod is provided with a strip-shaped hole, and the connecting shaft is arranged in the strip-shaped hole and can rotate relative to the strip-shaped hole.

[0013] According to some embodiments of the utility model, the supporting plate is provided with a first sliding rail extending in the left-right direction, and the conveying assembly is slidably connected to the first sliding rail to adjust the width of the conveying channel.

[0014] According to some embodiments of the utility model, the bagging mechanism further comprises a lifting driver and a welding head, the lifting driver is connected to the welding frame to drive the welding head to move closer to or farther away from the bagged spring.

[0015] The spring production line according to the second aspect of the utility model comprises the spring auxiliary conveying device according to the first aspect.

[0016] The spring production line according to the embodiments of the present invention has at least the following beneficial effects: The spring production line includes the spring auxiliary conveying device shown in the first aspect. The packaging mechanism is used to package the bagged springs to obtain multiple bagged springs, and the multiple bagged springs are connected together. The spring auxiliary conveying device is additionally provided with conveying components. Both conveying components are connected to the upper end of the pallet. The upper end of the pallet can be used to support the formed bagged springs. A conveying channel is constructed between the two conveying components. The inlet of the conveying channel is connected to the outlet of the packaging mechanism. That is, the packaging mechanism can convey the multiple bagged springs after packaging in an orderly manner into the conveying channel. The two ends of the bagged springs along their length direction can be connected to the left end and the right end of the conveying channel, respectively. The rotary drive component is used to drive the two conveying components to operate synchronously. Under the driving action of the rotary drive component, the multiple bagged springs are driven to be conveyed in an orderly manner from back to front, which is conducive to making the conveying of bagged springs more stable and reliable, avoiding the problems of bagged springs piling up and conveying skew, and improving the conveying accuracy of bagged springs.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a spring-assisted conveying device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the pallet and the rotary drive assembly of a spring-assisted conveying device according to an embodiment of the present invention;

[0021] Figure 3 for Figure 2 The side view shown shows the connection between the pallet of the spring-assisted conveying device and the rotary drive assembly;

[0022] Figure 4 for Figure 2 The top view shown shows the connection between the pallet of the spring-assisted conveying device and the rotary drive assembly;

[0023] Figure 5 This is a schematic diagram of the conveying component of a spring-assisted conveying device according to an embodiment of the present invention.

[0024] Icon labels:

[0025] 100. Bag separating mechanism; 110. Welding frame; 120. Rotary motor; 130. First drive rod; 140. Second slide rail; 150. Welding head;

[0026] 210, pallet; 211, first slide rail; 212, avoiding groove; 220, rotary driving assembly; 221, second bevel gear; 222, rotating shaft; 223, one-way bearing; 224, swing arm; 225, connecting rod; 226, strip-shaped hole; 227, connecting shaft; 230, conveying assembly; 231, belt; 232, pulley; 233, first bevel gear; 240, conveying channel. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the plural means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0031] Referring to Figures 1 to 5 As shown in the drawings, the spring auxiliary conveying device of an embodiment of the present application is applied to the sub-packaging of bagged springs and the conveying of bagged springs. Specifically, the spring auxiliary conveying device comprises a sub-bagging mechanism 100 and a conveying component.

[0032] The sub-bagging mechanism 100 is configured to sub-package the bagged springs to obtain a plurality of bagged springs. The spring auxiliary conveying device can be used in cooperation with an external spring coiling machine and a bagging device. The spring coiling machine can coil a steel wire into a spring, and the bagging device can put the spring into a non-woven fabric bag. The sub-bagging mechanism 100 of the spring auxiliary conveying device can realize the sub-packaging of the springs to obtain a plurality of bagged springs.

[0033] The conveying component includes a supporting plate 210, a rotating driving assembly 220, and two conveying assemblies 230 arranged in left and right directions, the supporting plate 210 is horizontally arranged, the two conveying assemblies 230 are connected to the upper end of the supporting plate 210, a conveying channel 240 is formed between the two conveying assemblies 230, the conveying channel 240 is arranged in front and back directions, and the inlet of the conveying channel 240 is opposite to the outlet of the bagging mechanism 100. That is, the bagging mechanism can convey the arranged multiple bagged springs into the conveying channel 240.

[0034] The rotating driving assembly 220 is used for driving the two conveying assemblies 230 to operate synchronously, so that the conveying channel 240 can be used for conveying the bagged springs from back to front. Specifically, when the spring is placed into the conveying channel 240, the two ends of the spring along the length direction can be abutted with the two conveying assemblies 230 respectively, and the two conveying assemblies 240 jointly convey the spring from back to front. The supporting plate 210 is used for supporting the bagged spring, that is, limiting the downward stroke of the bagged spring, so as to avoid the problem that the spring falls out of the conveying channel 240, and is beneficial to improve the conveying accuracy of the bagged spring.

[0035] In the conventional bagged spring production line, the multiple bagged springs connected in series may be accumulated at the rear end of the production line, or the conveying of the bagged springs is deviated due to the mutual influence of the multiple bagged springs, that is, the conveying of the bagged springs is unstable and has low accuracy.

[0036] The spring auxiliary conveying device provided by the embodiment of the utility model can assist in conveying the bagged springs by arranging the conveying component at the outlet end of the bagging mechanism 100, by the conveying channel 240 defined by the two conveying assemblies 230, so that the multiple bagged springs can pass through the conveying channel 240 in an arranged manner, thereby avoiding the problem of spring accumulation, and by the left end limiting and right end limiting of the bagged spring conveying realized by the two conveying assemblies 230, the accuracy and stability of the bagged spring conveying are improved, and the problem of deviation in the bagged spring conveying process is avoided.

[0037] Referring to FIG. 2, Figure 1 As shown in FIG. 2, specifically, the conveying assembly 230 includes a belt 231 and multiple pulleys 232 arranged in front and back directions, the axis of the pulley 232 extends in up and down directions, and the pulley 232 is rotationally connected to the supporting plate 210, the belt 231 is arranged between the multiple pulleys 232, and the position of the multiple pulleys 232 can change the surrounding track of the belt 231.

[0038] The rotating driving assembly 220 can drive the belt pulley 232 to rotate, so that the belts 231 rotate around the up-down extending axis, and the conveying channel 240 is formed between the right side surface of the left belt 231 and the left side surface of the right belt 231. The two ends of the pocketed spring along the length direction can abut against the two belts 231 respectively, and through the friction between the belts 231 and the pocketed spring, the rotation of the belts 231, the pocketed spring can be conveyed from the rear to the front.

[0039] It should be understood that in other embodiments, the conveying assembly 230 includes a plurality of rollers arranged and arranged, the rollers extend along the up-down direction at both ends, the rollers are rotatably connected to the supporting plate 210, and the plurality of rollers arranged together define a conveying surface. The conveying channel 240 is formed between the two conveying surfaces of the two conveying assemblies 230. The two ends of the pocketed spring along the length direction can abut against the two conveying surfaces respectively, and the rotating driving assembly 220 can drive the plurality of rollers to rotate synchronously, so as to drive the plurality of pocketed springs to convey from the rear to the front.

[0040] It should be understood that in the present embodiment, the bagging mechanism 100 includes a linear driving assembly and a welding frame 110, and the linear driving assembly is connected with the welding frame 110 to drive the welding frame 110 to move back and forth, and the rotating driving assembly 220 is connected with the welding frame 110 to convert the forward and backward movement of the welding frame 110 into the rotation of the belt pulley 232.

[0041] Specifically, the linear driving assembly includes a rotating motor 120, a first crank, a first driving rod 130 and a second sliding rail 140, the rotating motor 120 is connected with the first crank to drive the first crank to rotate, the lower end of the welding frame 110 is provided with a sliding groove, the sliding groove is slidably connected with the second sliding rail 140, and the two ends of the second sliding rail 140 extend along the front and back directions.

[0042] After the rotating motor 120 drives the first crank to rotate, the welding frame 110 can be driven to move back and forth along the second sliding rail 140 under the driving action of the first driving rod 130. The bagging mechanism 100 further includes a lifting driver and a welding head 150, the lifting driver is connected to the welding frame 110 to drive the welding head 150 to approach or move away from the pocketed spring after being bagged.

[0043] For the bagged spring, the lifting driver can drive the welding head 150 to press downward, so that the welding head 150 abuts against the non-woven fabric bag containing the spring, and through the welding of the welding head 150, the bagging of one spring can be realized, that is, the non-woven fabric bag is separated to form a cavity containing the spring, so as to obtain a bagged spring. Then the linear driving assembly can drive the welding head 150 to move forward, thereby driving the bagged spring to move forward, so as to assist the bagged spring to be placed into the conveying channel 240, and then through the reset of the lifting driver and the linear driving assembly, the bagging and conveying of the next spring can be realized.

[0044] The rotary driving assembly 220 is connected with the welding frame 110, and is used for converting the forward and backward movement of the welding frame 110 into the rotation of the belt wheel 232, that is, realizing the linkage of the conveying assembly 230 and the linear driving assembly, which is beneficial to reduce the number of motor arrangements, thereby reducing the manufacturing cost of the spring auxiliary conveying device, and through the linkage of the rotary driving assembly 220, the synchronization of the operation of the conveying assembly 230 and the bagging mechanism 100 is improved, and the accuracy of the bagged spring conveying is improved.

[0045] The welding head 150 can be an ultrasonic welding module, and the structure and welding principle thereof belong to the conventional technical means in the art, which will not be described here.

[0046] It should be understood that in other embodiments, the linear driver and the lifting driver can be an electric push rod, a pneumatic push rod, a hydraulic push rod, a crank slider mechanism, a screw slider mechanism or the like linear driving mechanism.

[0047] It can be understood that in the embodiment, the conveying assembly 230 further comprises a first bevel gear 233 connected with one of the belt wheels 232, the first bevel gear 233 rotates around an up-down extending axis, and the first bevel gear 233 is coaxially arranged with and connected with one of the belt wheels 232, the rotary driving assembly 220 comprises two second bevel gears 221 rotating around left-right axes, and the second bevel gears 221 correspond to and mesh with the first bevel gear 233 one by one.

[0048] The conveying assembly 230 converts the rotation of the second bevel gears 221 around the left-right direction into the rotation of the first bevel gear 233 around the up-down direction through the cooperation of the first bevel gear 233 and the second bevel gears 221, which is beneficial to simplify the difficulty of converting the linear movement of the welding frame 110 into the rotation of the belt wheel 232.

[0049] It can be understood that the conveying component further comprises a rotating shaft 222, and two second bevel gears 221 coaxially arranged on the rotating shaft 222 are connected to the rotating shaft 222 in one-to-one correspondence with the first bevel gears 233. The conveying component is beneficial to adjusting the rotation direction of the two belts 231 through the cooperation of the two second bevel gears 221 and the two first bevel gears 233, so as to ensure that the two conveying assemblies 230 convey the bagged springs in the same direction.

[0050] Specifically, the conveying assembly 230 comprises a connecting block, and the first bevel gears 233 and the second bevel gears 221 are rotationally connected to the connecting block, so as to ensure the stable engagement of the first bevel gears 233 and the second bevel gears 221 and avoid the disengagement of the first bevel gears 233 and the second bevel gears 221 during the conveying process.

[0051] It can be understood that the rotary driving assembly 220 further comprises a one-way bearing 223, a connecting rod 225 and a swing arm 224, the two ends of the connecting rod 225 are movably connected to the welding frame 110 and the swing arm 224 respectively, the end of the swing arm 224 away from the connecting rod 225 is connected to the one-way bearing 223, and the one-way bearing 223 is connected to the rotating shaft 222, so as to drive the rotating shaft 222 to rotate in the positive direction.

[0052] The rotary driving assembly 220 can convert the movement of the welding frame 110 in the front-rear direction into the swing of the swing arm 224 through the connection of the connecting rod 225 and the swing arm 224, and convert the swing of the swing arm 224 in one direction into the positive rotation of the rotating shaft 222 through the connection of the one-way bearing 223, the swing arm 224 and the rotating shaft 222, and convert the rotation of the rotating shaft 222 in the left-right direction into the rotation of the pulley 232 in the up-down direction through the engagement of the second bevel gears 221 and the first bevel gears 233, so as to realize the rotary driving of the belt 231 and convert the linear movement of the welding frame 110 into the rotation of the belt 231, which is beneficial to reducing the number of motor arrangements and lowering the manufacturing cost of the spring auxiliary conveying device, and the linkage of the rotary driving assembly 220 is beneficial to improving the synchronization of the operation of the conveying assembly 230 and the bagging mechanism 100 and improving the accuracy of the conveying of the bagged springs.

[0053] It should be noted that the structure and principle of the one-way bearing 223 belong to the conventional technical means in the field, and will not be described here.

[0054] It can be understood that one end of the connecting rod 225 is rotationally connected to the welding frame 110, the other end of the connecting rod 225 is connected to a connecting shaft 227, one end of the swing arm 224 adjacent to the connecting rod 225 is provided with a strip-shaped hole 226, and the connecting shaft 227 is arranged in the strip-shaped hole 226 and can rotate relative to the strip-shaped hole 226.

[0055] The conveying component is provided with a connecting shaft 227 at one end of the connecting rod 225 adjacent to the swing arm 224, the two ends of the connecting shaft 227 extend in the left-right direction, the swing arm 224 is provided with a strip-shaped hole 226 at one end adjacent to the connecting rod 225, and the connecting shaft 227 is arranged in the strip-shaped hole 226, and the sliding of the connecting shaft 227 in the strip-shaped hole 226 and the rotation of the connecting shaft 227 relative to the strip-shaped hole 226 can ensure the transmission of the connecting rod 225 to the swing arm 224, thereby avoiding the problem of jamming at the connection between the connecting rod 225 and the swing arm 224.

[0056] It should be understood that in other embodiments, the rotary drive assembly 220 includes a rotating shaft 222, a second crank and a second drive rod. The two ends of the second drive rod are respectively connected with the welding frame 110 and the second crank, and the rotation center of the second crank is coaxially arranged with the rotating shaft 222, so as to convert the forward and backward movement of the welding frame 110 into the rotation of the second crank and the rotating shaft 222. The rotating shaft 222 can be driven to rotate by the cooperation of the second bevel gear 221 and the first bevel gear 233, so as to realize the rotary drive of the pulley 232.

[0057] It should be understood that in the present embodiment, the supporting plate 210 is provided with a first sliding rail 211 extending in the left-right direction, and the conveying assembly 230 is slidably connected with the first sliding rail 211, so as to adjust the distance between the two conveying assemblies 230, that is, to adjust the width of the conveying channel 240.

[0058] Specifically, the conveying assembly 230 includes a sliding block, and the connecting block and the pulley 232 are connected to the sliding block, and the sliding block is slidably connected with the first sliding rail 211. The user can adjust the position of the sliding block on the first sliding rail 211 according to the size of the bagged spring and the actual conveying effect. When the sliding block is adjusted in place, the user can fix the sliding block to the supporting plate 210 by using threaded fasteners such as screws and bolts, that is, to fix the relative positional relationship between the two conveying assemblies 230.

[0059] Since the connecting block is connected to the sliding block, and the first bevel gear 233 and the second bevel gear 221 are both connected to the connecting block, the first bevel gear 233 and the second bevel gear 221 remain engaged and slide synchronously with the sliding of the sliding block.

[0060] Specifically, the conveying assembly 230 is partially arranged in the supporting plate 210, and the supporting plate 210 is provided with an avoiding groove 212 corresponding to the part arranged by the conveying assembly 230. The avoiding groove 212 can provide an avoiding space for the sliding of the conveying assembly 230, so as to avoid the problem that the sliding of the conveying assembly 230 is hindered by the supporting plate 210.

[0061] The spring auxiliary conveying device can adjust the position between the two conveying assemblies 230 to change the width of the conveying channel 240, so as to adapt to different specifications of bagged springs, and can ensure that the bagged springs enter the conveying channel 240 along the center line of the conveying channel 240, thereby improving the stability of conveying the bagged springs and avoiding the problems of bagged spring jamming and accumulation during conveying.

[0062] The spring production line of one embodiment of the utility model, the spring production line includes the spring auxiliary conveying device shown in any one of the above embodiments. The sub-packaging mechanism is used for sub-packaging the bagged springs, so as to obtain a plurality of bagged springs, and the plurality of bagged springs are connected together. The spring auxiliary conveying device is additionally provided with a conveying component, the two conveying assemblies 230 are connected to the upper end of the supporting plate 210, the upper end of the supporting plate 210 can be used for supporting the formed bagged springs, and the conveying channel 240 is constructed between the two conveying assemblies 230, the inlet of the conveying channel 240 is connected with the outlet of the sub-packaging mechanism, that is, the sub-packaging mechanism can convey the arranged bagged springs into the conveying channel 240, and the two ends of the bagged spring along the length direction can be connected with the left end and the right end of the conveying channel 240 respectively. The rotary driving assembly 220 is used for driving the two conveying assemblies 230 to operate synchronously, under the driving action of the rotary driving assembly 220, so as to drive the plurality of bagged springs to be conveyed from back to front, which is beneficial to the stable and reliable conveying of the bagged springs, avoids the problems of bagged spring accumulation and conveying deviation, and is beneficial to improving the conveying precision of the bagged springs.

[0063] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A spring auxiliary conveying device, used in the production of bagged springs, characterized in that, include: The bagging mechanism (100) is configured to distribute the bagged springs to obtain a plurality of the bagged springs; The conveying component includes a pallet (210), a rotary drive assembly (220), and two conveying assemblies (230) arranged at a left-right interval. Both conveying assemblies (230) are connected to the upper end of the pallet (210). A conveying channel (240) is constructed between the two conveying assemblies (230). The inlet of the conveying channel (240) is opposite to the outlet of the bag-separating mechanism (100). The rotary drive assembly (220) is used to drive the two conveying assemblies (230) to operate synchronously. The two ends of the bag spring along its length direction can abut against the left and right ends of the conveying channel (240) respectively. The conveying channel (240) is used to convey the bag spring from back to front.

2. The spring-assisted conveying device according to claim 1, characterized in that: The conveying assembly (230) includes a belt (231) and a plurality of pulleys (232) arranged in a front-to-back manner. The pulleys (232) are rotatably connected to the pallet (210). The belt (231) is wound around the plurality of pulleys (232), and the conveying channel (240) is formed between two belts (231).

3. The spring-assisted conveying device according to claim 2, characterized in that: The bag-separating mechanism (100) includes a linear drive assembly and a welding frame (110). The linear drive assembly is connected to the welding frame (110) to drive the welding frame (110) to move back and forth. The rotary drive assembly (220) is connected to the welding frame (110) to convert the back and forth movement of the welding frame (110) into the rotation of the pulley (232).

4. The spring-assisted conveying device according to claim 3, characterized in that: The conveying assembly (230) further includes a first bevel gear (233) connected to one of the pulleys (232), and the rotary drive assembly (220) includes a second bevel gear (221) that rotates about a left-right axis and meshes with the first bevel gear (233).

5. The spring-assisted conveying device according to claim 4, characterized in that: The conveying component also includes a rotating shaft (222), on which two second bevel gears (221) are connected coaxially, and the second bevel gears (221) correspond one-to-one with the first bevel gears (233).

6. The spring-assisted conveying device according to claim 5, characterized in that: The rotary drive assembly (220) further includes a one-way bearing (223), a connecting rod (225), and a swing arm (224). The two ends of the connecting rod (225) are movably connected to the welding frame (110) and the swing arm (224), respectively. The end of the swing arm (224) away from the connecting rod (225) is connected to the one-way bearing (223). The one-way bearing (223) is connected to the rotating shaft (222) to drive the rotating shaft (222) to rotate in the positive direction.

7. The spring-assisted conveying device according to claim 6, characterized in that: One end of the connecting rod (225) is rotatably connected to the welding frame (110), and the other end of the connecting rod (225) is connected to a connecting shaft (227). The swing arm (224) has a strip hole (226) near one end of the connecting rod (225), and the connecting shaft (227) passes through the strip hole (226) and can rotate relative to the strip hole (226).

8. The spring-assisted conveying device according to claim 3, characterized in that: The pallet (210) is provided with a first slide rail (211) extending in the left-right direction, and the conveying assembly (230) is slidably connected to the first slide rail (211) to adjust the width of the conveying channel (240).

9. The spring-assisted conveying device according to claim 3, characterized in that: The bagging mechanism (100) further includes a lifting driver and a welding head (150), the lifting driver being connected to the welding frame (110) for driving the welding head (150) closer to or further away from the spring after bagging.

10. A spring production line, characterized in that, Includes the spring-assisted conveying device as described in any one of claims 1 to 9.

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